Humidifier



Sept. 25, 1928.

F.. F. BAHNs'oN 'A HUMIDIFIER Filed June 30. 1924 ......-Illuz Patentedsepa-25,1928.'

UNITE-o STATES P aif lli-fiar'f fol-Fica rnnnnmc r. muscu, or'wmsron-,wenn casema. 1

l AApplication-llcd June 30, 1924. :Berialom l I This invention relatesto humidiers ofthe midiiier.

type which distributes moisture directly into r the air of the room orother space in -v'vhi'ch a controlled humidity is desired, and moreparticularly to small and portableh'umidifiers adapted for use inresidences. f I

An object of the invention is to'p'ro a small humidifier which willdeliverI amarimum quantity of'l'noisture to the air. Ali

In the drawing, the numeral 1 designates a receptacle for holding water,which're'ceptacle is preferably provided with a peripheral flange andshoulder '2 upon whlch the frame -and operating parts of the humidifiermay rest. As shown, the frame comprises three straps or legs 3 forming altripod support forfa lmotor 4, which'is arranged with the armatureshaft 5 in vertical position. The moving parts, which are allv mountedupon the shaft 5, are a fan 6, a water distributing disk' 7 and' a waterelevator 8.

The water elevator 8 is constructed as a tube .of uniform diameterhaving a bushing 9 at its upper end by means 'of which the tube isconnected tothe motor shaft.

The tube 8 is of such length as tojdepend well below the. frame 3 and isprovided with a lower end wall 10 having an opening thereinof lessdiameter than the inside diameter of the tube 8. IThe end wall 10 ispre'ferably formed as an inverted trim-v cated cone and may, ifdesired,*be provided with a shallow cross blade 11 to assist in thelifting operation, Above the u wardlyaring disk 7, thetube 8 is provi edwith-one or more apertures or rows\ of apertures through which waterwhichtravels up the inner face of the tube maybedelivered to the disk '7Adjacent the periphery of the disk 7 is an annular set of statlonaryblades 12 which break up the water from thedisk .--J n ias When currentis analr current est :of-the' current delivered-byjf 'thej an" -ipassesloutwardly o ver the upperj -faceloff-theedisk 'and -ahother 'ortionpasses sk, and then 60 through`fopein 13 'in the outwardly betweenfthelower face of the disk provided" withfblades 14 which 'assistinestabllshmg'the lower air current. Obviously the openings'13 liev insideof the points` at 05- which water thrown strikes the disk.

The operating parts vfrom'the water elevator vare enclosed by mein-v`hers which direct the moist air from the humidifier vin a horizontaldirection and 70.

which also serve to return to the water supply any drops of water whichsettle o1it of the air current. Thelower portibn of the' casingcomprises a shell 15 -whose lower edge preferably engages the ange 2 ofthe water 75 receptacle with a sliding fit. The upper.

edge of the shell is turned inwardly, forming a liange 16, and' anupwardly and out? wardly flaring member 17 is `mounted upon the frame 3and spaced from the liange 16. 80

4The lower portion of the member 1 7 carries a horizontal plate 18 whichextends towards the shell 15 and lies below'the outlet open# ing, thusconstraining the moist air to follow a tortuhus path. It will be notedthat the surfaces along which the-moist air travels will return anyprecipitated moisture to the receptacl The humidier/ casing ispreferably completed by a shell f19which rises from the 90` member 17Yand extends above the;motorl 4.

The air enters -through the open end of the shell 19, which open end isYpreferably provided with a guard such as a'wire screen 20.

e The inner end of the casing 17-19 is closed, 95

except for the central outlet directly above the fan 6.

f In some cases the eedo rotation of the A water elevatorl and e shapeofthe water receptacle may be such that the entire body looof watertends to travel about .the receptacle.

ATo' prevent this action, crossed ribs 21 may be provided below theelevator tube.

The humidifier will, of course,1he co'n-fw trolled by a humidistatof anysuitable type,

which humidistat will be located at some point remote from the moist airoutlet of the humidifier.V The-choiceand location of the--humidistat,however, form' no part ofY the present invention. sgpphed to the motor',

lished which moves downwardly upon the rotating disk'7, part of the airthen moving laterally along the upper face of the disk, while theotherportion passes through the disk and then moves outwardly betweenthe disk and the surface of the water. lThe rotation of the elevatortube 8 lifts water from the receptacle and dicated by the arrows. of theelevator tube Sas a right circular cylinder, water is prevented fromtraveling' lup the outside of the tube, the entire flow discharges itupon the upper face of the disk, the path taken by the water being .in-

Due to formation taking place along the inner Wall. The water is thrownfrom the disk with a high velocity and is atomized by impact against theblades l2. Due to the provision of an air current below the level atwhich the water isatomized, the evaporating capacity ofthe humidifier isvery high as only the larger drops or particles of water can sinkthrough this air current. Some relatively large particlesv will be takenup by the air currents, but such particles will be deposited upon thesurfaces which define the tortuous outlet passage and receptacle. i

It will be apparent that the embodiment will flow back into thedescribed herein". is illustrative of my invention, and that manyvchanges may be Iliade in the various parts, their relative size, shapeand location without departing from the invention as set forth in thefollowing claims.

I claim: A 1. In a humidifier, a supporting frame, la

Ymotor carried by the frame, a tube depending from said framev andhaving an opening near the upper end thereof, said tube being rotatableby said motor to deliver water through said opening, a fan located-above said opening and establishing a current of air downwardly alongsaid tube,

and means carried bv and extending laterally from said tube below saidopening to receive water delivered therethrough, said means havingopenings therethroughl permitting a portion of said air current to crossthe path taken 'by the water and to move outwardly from said tube belowthe ,said laterally extending means.

2. In a humidifier, asupporting frame' adapted to be supported by thewalls of a water-holding receptacle, a motor carried by said frame, awater elevator operated by and depending below said motor, said elevatorhaving an opening near the upper end thereof, fan blades carried by saidelevator between'said opening and said motor for establish-ing a currentof air 'downwardly along said elevator, a water-throwing dis A blow saidopening for receiving water delivered therefrom, and means adiacent theperiphery of said disk'forl breaking up the water thrown from said disk.

3. In a. humidifier, a cylindrical tube adapted to be rotated by amotor, an open-v ing near the upper. end of said tube, a lower end wallfor said tube comprising a trun cated cone tapering downwardly froni'the side wall of the tube, afan carried at the upper end of saidtube, and a water-reo and delivering disk carried by said i ceiving tubebelow said opening.

4;. rlhe invention as 'clainied in claim 3,

wherein said disk is provided with. apertures near said tube to peiniitthe pasage through said disk ofair delivered by said fan.

5. In a humidifier, a frame adapted to be positioned above awatersholding receptacle, a motor on said frame and having a verticallyarranged shaft. a tubular water ele-- vator carried by said shaft, a fanat the upper end of and adapted to deliver a current t of air axiallyofsaid water elevator and an upwardly flaring disk on said tubularelevator below said fan and having its cential portion located below thewater delivery outlet of said elevator, said disk being `provided withapertures adjacent the axis thereof. i

6. In a humidifier, -a frame adapted to be positioned above awater-holding receptacle, a motor on said frame and having a verticallyarranged shaft, a tubular water elevator carried by said shaft, afan atthe upper end of and adapted to deliver al current of air axially ofsaid water elevator, and' a disk on said water` elevator below said fan,saidl disk comprising aflat apertured por'- tion positioned below thewater delivery outlets of said elevator and an' outer por- A tion Haringupwardly and outwardly from said flatapertured portion to receive anddistribute water thrown centrifugally from' the outlets 'of said Waterelevator.

7 lThe invention as set forth in claim 6, wherein said fiat portion ofsaid disk is provided with blades for-assisting the passageoutwardly'along the lower face thereof.

In testimony whereof.'I 'aflix my signature.

vby said fante pass throughrsaid disk and FREDERIC F. BAHNsoN.

